The resistance to the movement of the globule in oily water mixture depends on its size and the （） of the fluid.

The principle of separation by which all commercially a...

单项选择题The principle of separation by which all commercially available oily water separators function is （） differential between oil and water.

In a domestic fresh water system, the pump starters are...

单项选择题In a domestic fresh water system, the pump starters are controlled by （） switches which operate when the pressure in the tank varies within predetermined limits as water is drawn off.

Distilled water is now largely used on board, this may ...

单项选择题Distilled water is now largely used on board, this may be corrosive (due to presence of dissolves CO₂) and （） to the taste.